CHALLENGE 3446.1[UNSOLVED]

(BOB TO CODE BREAKERS)

-AN URGENT MESSAGE-

mbocpgqdmbnboeqexbqeviqdne

nbviyuqgxawfnbnfofviqgpenbld

qeviqbneyewjnemgnemeoepbnf

pgobtgogvivjpgviqdnenbvisdqgx

aocnbnfofvipgpenblkogviyuqgv

iqdofneyevetaqaralatclanutcpat

utdneqkobmeyenemfqkykvdnbvi

zambnerineoindnumgniokphvip
bviqkmbnbvjsaxezfwanarfsgtiwk
ngnhqjljyiwjsuogvhxbsgqhqizkm 

C.I.-249